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Powerful red-green-blue laser source pumped with a mode-locked thin disk laser
Felix Brunner1, Edith Innerhofer, Sergio V Marchese
1Institute of Quantum Electronics, Department of Physics, Swiss Federal Institute of Technology, ETH Zürich Hönggerberg, Wolfgang-Pauli-Strasse 16, 8093 Birch, Switzerland. brunner@phys.ethz.ch
Optics Letters
|September 11, 2004
Summary
We developed a powerful red-green-blue laser system using a single laser oscillator. This innovative design achieves high average powers for red, green, and blue light without complex amplifier stages or synchronized cavities.
Area of Science:
- Optics and Photonics
- Laser Physics
Background:
- High-power, multi-color laser sources are crucial for various applications, including spectroscopy, microscopy, and materials processing.
- Existing systems often rely on complex architectures with multiple amplifiers and synchronized cavities, increasing cost and operational complexity.
Purpose of the Study:
- To demonstrate a compact and efficient red-green-blue (RGB) laser source.
- To achieve high average output powers in the red, green, and blue spectral regions.
- To simplify the laser system design by eliminating the need for amplifier stages and synchronized cavities.
Main Methods:
- Utilized a single laser oscillator to provide pump power for all nonlinear conversion stages.
- Employed nonlinear optical crystals for frequency conversion to generate red, green, and blue wavelengths.
- Operated the majority of nonlinear crystals under critical phase-matching conditions at room temperature.
Main Results:
- Achieved average output powers of 8 W (red), 23 W (green), and 10.1 W (blue).
- Demonstrated a system powered entirely by a single laser oscillator, negating the need for additional amplifier stages.
- Confirmed the absence of requirement for synchronized cavities in the presented architecture.
Conclusions:
- The developed RGB laser source offers a simplified and efficient approach to generating high-power, multi-color laser output.
- The system's design, utilizing a single oscillator and room-temperature, critically phase-matched crystals, presents a practical advancement for laser technology.